Metal lath



Feb. 23,1926. 1,574,304

G. F. PAWLING ,METAL l'LMH Filed July 2, 1924 ll ,lul I -used inconnection therewith.

Patented Feb. 2.3, 1926.

UNITED STATES GEORGE F. PAW'LING, OF PHILADELPHIA, PENNSYLVANIA.

METAL LATE.

Application led Ju1y 2,

To all whom it may concern.'

Be it known that I, GEORGE F. PAWLTNG, a citizen of the United States,residing at Philadelphia,in the county of Philadelphia and State ofPennsylvania, have invented a certain new` and useful Metal Lath, ofwhich the`following is a specification.

This invention, generally stated, has relation to a floor, wall,partition or ceiling construction of the type disclosed in my copendingapplication for Letters Patent filed May 23, 1924, and serially numbered715,- 281, and has more especial relation to a novel form of metal lathconstruction as As at present practiced it is the aceepted custom inbuilding` operations where either solid metal lath or expanded-metallath vis employed to securely wire the lath to the supportingstructure. Usually No. 16 gauge soft iron wire is employed for thepupose. This is a very impractical and tedious '-node of procedure;materially slows up the erect.- ing programme; constitutes a waste ofwiie; and is a comparatively expensive way of lath attachment.

The leading object of the present invention is to provide a novel typeof metal lath, either of solid or expanded form, in which wiring thereofto a supporting structure is eliminated and in which not only is a moreeflicient and thoroughly practical mode of lath laying provided but thesame may be more quickly and cheaply effected by unskilled labor. Afurther object is to provide a novel arrangement, combination andconnection of parts for attaining the results sought by the leadingobject. A still further object resides in the providing of a lathconstruction in which the attaching means are formed in the lathstructure simultaneously with lath manufacture.

Other and further objects not at this time particularly referred to willappear-hereinafter.

The invention consists of the novel construction hereinafter describedand finally claimed.

The nature, characteristic features and scope of the invention will bemore fully understood from the following description taken in connectionwith the accompanyingr drawings forming part hereof, and in which:

Fig. 1 is a fragmentary view, in longitu- 1924. Serial No. 723,638.

Fig. 4, is a similar view illustrating adliacent sections of lath inoverlapping position prior to bending back of the attaching clips.

' Fig. 5 is a similar view illustrating the l clips in clinchedposition, and

Fig. G, is a similar view, in plan, of a lath illustrating the originalposition of clips.

For the purpose of illustrating my invention I have shown intheaccompanying drawings one form thereof which is at present preferred'by me, since the same has been found in practice to give satisfactoryand reliable results, although it is to be understood that the variousinstrumentalitics of which my invention consists can be variouslyarranged and organized and that my invention is not limited to theprecise arrangement and organization of the instrumentalities as hereinshown and described.

Referring to the drawings in detail and more particularly to Fig. 6, thenumeral 1, designates the expanded metal portion of a section of lath,which I have selected for illustrative purposes only, as obviously I maymake use of solid lath, since several forms of each are in general use.During the period of cutting, stamping, pressing or otherwise formingthe parts 1, the opposed marginal portions of the lath are not cut,except as to be presently described,

but are left intact to form relatively broad strips or webs 2. ,Atdesired intervals between the opposed edge strips, additional stripssuitably spaced with respect to one another may be employed, the numberbeing immaterial in so far as the present linvention is concerned.Formed' integral with each strip or web 2, at the time of lathfabrication, and along each longitudinal edge thereof, are beads 3, theundersides being concaved with upper convexed surfaces, best seen linFig. 3. At the time of fabrication of parts 1, the strips 2 have stampedtherefrom opposed clips 4, preferably formed upon an arc of a circle,upwardly extended as best seen in Fig. 4. These clips are formed atdesired intervals throughout the length of strips 2. Considered in planthe clips, as formed with respect to a strip 2, Iin their originalposition form a substantially H-shaped` construction. V'Vith the lath,thus constructed, positioned across, for instance bar-joist 5, spanninga structure as shown in Figs. 1 and 2, adjacent edge strips 2 are causedto overlap so that the respective beads 3 thereof and the curved clipsthereof have nested relation as best seen in Fig. 4, thus forming adouble thickness of lath at this portion of the structure. This relationof parts, considered in plan, is clearly shown at the right hand side ofFig. 1. Workmen, thereupon, turn back the opposed double sets of clips 4upon the uppermost strip as clearly shown at the upper, central portionof Fig. 1, and in Fig. 5. Any suitable tool may be employed for thepurpose and maybe readily and expeditiously accomplished by unskilledlabor. Thus adjacent or meeting edges of metal lath are secured Withrespect to one another Without the employment of Wire thereby securingthe advantages 'previously enumerated the advantages of which areapparent. In order to secure the lath structure as a Whole with respectto the supporting structure use is made of metal pins, pegs or Wedges 6,fully disclosed in my aforesaid patent application, which pins, pegs 0rWedges in practice are caused to penetrate the strips or Webs 2 and passdownwardly between the top rails of a bar-joist as clearly shown in Fig.2.

It will now be apparent that I have devised a novel and usefulconstruction which embodies the features of advantage enumerated asdesirable in the statement of the invention and the above descriptionand While I have in the present instance shown and described thepreferred embodiment thereof which has been found in practice to givesatisfactory and reliable results; it is to be understood that the sameis susceptible of modification in various particulars Without departingfrom the spirit or scope of the invention or sacrificing any of itsadvantages.

What I claim is:

1. The combination with a structure to be spanned, and spaced joistspanning said structure of a series of strips, of metal lath arrangedacross said joist said strips being lbordered by solid Webs, theadjacent Webs of said lath overlapping and each having formed therefromopposed clips, said clips in use being bent backwardly and clinched inpairs to interlock said webs in a continuous, horizontal plane.

2. The combination with a structure to be spanned, and spaced joistspanning said structure of a series of strips, ofmetal lath arrangedAacross said joist said strips being bordered by solid Webs, the adjacentWebs of said lath overlapping and each being longitudinally A beaded andhaving formed therefrom opposed clips, said clips. in use being bentbackwardly and clinched in pairs to interlock said Webs in a continuous,horizontal plane.

3. The combination With a structure to be spanned, and spaced joistspanning said structure of a series of strips of metal lath arrangedacross said joist said strip being bordered by solid Webs, the adjacentWebs of said lath overlapping and each having formed therefrom opposed asubstantially H-shaped'arrangement of clips, said clips in use beingbent backwardly and clinched in pairs to interlock said Webs in acontinuous horizontal plane.

4. The combination With a structure to be spanned, spaced joist spanningsaid structure of a series of strips, of metal lath arranged across saidjoist said strips being bordered by solid Webs, the adjacent Webs ofsaid lath overlapping and each having formed therefrom opposed clips,said clips in use being bent backwardly and clinched Iin pairs tointerlock said Webs in a continuous, horizontal plane, and pinspenetrating at leastv some of the Webs to interlock said lath to saidjoist.

In testimony whereof, I have hereunto signed my name.

GEO. F. PAWLING.

